Boss® 125 Multi-Seal Building/Construction Sealant

Ideal for closing off aluminum angles to concrete knee walls, pads and footers. Will work well in greenhouse applications due to its superior elasticity properties and ability to maintain seals.

• Multi-purpose, one-part sealant cures on exposure to atmospheric moisture to form a highly durable, flexible seal.• Formulated to offer outstanding primerless adhesion to most common building materials, including vinyl, aluminum, steel, concrete, wood and glass.• Virtually unaffected by sunlight, rain, snow, ozone and temperature extremes.• Excellent UV resistance and color stability.• Stays flexible without tearing, cracking, drying out or becoming brittle.• Ready to use, flows easily from its container.• Can be applied in temperatures from -35°F to 140°F.• Bonds to damp surfaces. Applies the same in all seasons.• Paintable under 1 hour.• Tack free in 8 minutes.

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Shipping Estimator

We use a freight shopping program to calculate the best shipping rate to the entered zip code — this is only an estimate and charges may vary at checkout.

• Building Orders: Large buildings may incur additional charges for multi-truckload shipments.
• Hawaii/Alaska: Larger items may not be able to ship by FedEx and may require freight shipping. For an accurate freight shipping quote to these two states, please contact us.
• Polycarbonate Panel Orders: Additional packaging charges apply and will not appear on your order confirmation e-mail. One of our Web Sales Specialists will contact you with your order total before your order is finalized. Learn more about polycarbonate sheet packing.

Next day air and second day air orders are only shipped Monday through Friday.

Freight Truck Shipment Requirements

Delivery location must be accessible to the delivery truck. Unloading and moving product(s) is your responsibility. Truck freight companies do NOT require their drivers to unload shipments and to call before delivery. For an additional fee you may request Lift Gate Service and the carrier will lower your product(s) to the ground.
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Building Orders

Polycarbonate Panel Orders

Additional packaging charges apply and will not appear on your order confirmation e-mail. One of our Web Sales Specialists will contact you with your order total before your order is finalized. Learn more about polycarbonate sheet packing.
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